Persistent many-body quantum echoes

Dabelow L, Reimann P (2020)
Physical Review Research 2(2): 023216.

Zeitschriftenaufsatz | Veröffentlicht | Englisch
 
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Abstract / Bemerkung
We consider quantum many-body systems evolving under a time-independent Hamiltonian H from a nonequilibrium initial state at time t = 0 towards a close-to-equilibrium state at time t = tau. Subsequently, this state is slightly perturbed and finally propagated for another time period tau under the inverted Hamiltonian -H. The entire procedure may also be viewed as an imperfect time inversion or "echo dynamics." We unravel a remarkable persistence of such dynamics with respect to the observable deviations of the time-dependent expectation values from the equilibrium expectation value: For most perturbations, the deviations in the final state are essentially independent of the inversion time point tau. Our quantitative analytical predictions compare very well with exact numerical results.
Erscheinungsjahr
2020
Zeitschriftentitel
Physical Review Research
Band
2
Ausgabe
2
Art.-Nr.
023216
eISSN
2643-1564
Page URI
https://pub.uni-bielefeld.de/record/2950740

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Dabelow L, Reimann P. Persistent many-body quantum echoes. Physical Review Research. 2020;2(2): 023216.
Dabelow, L., & Reimann, P. (2020). Persistent many-body quantum echoes. Physical Review Research, 2(2), 023216. doi:10.1103/PhysRevResearch.2.023216
Dabelow, L., and Reimann, P. (2020). Persistent many-body quantum echoes. Physical Review Research 2:023216.
Dabelow, L., & Reimann, P., 2020. Persistent many-body quantum echoes. Physical Review Research, 2(2): 023216.
L. Dabelow and P. Reimann, “Persistent many-body quantum echoes”, Physical Review Research, vol. 2, 2020, : 023216.
Dabelow, L., Reimann, P.: Persistent many-body quantum echoes. Physical Review Research. 2, : 023216 (2020).
Dabelow, Lennart, and Reimann, Peter. “Persistent many-body quantum echoes”. Physical Review Research 2.2 (2020): 023216.

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